Add 28/90 and 16/9
1st number: 28/90, 2nd number: 1 7/9
28/90 + 16/9 is 94/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
28/90 = 28 × 1/90 × 1 = 28/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
16/9 = 16 × 10/9 × 10 = 160/90 - Add the two like fractions:
28/90 + 160/90 = 28 + 160/90 = 188/90 - 188/90 simplified gives 94/45
- So, 28/90 + 16/9 = 94/45
In mixed form: 24/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90+16/9 28/90+32/9 28/90+16/18 84/90+16/9 28/90+48/9 28/90+16/27 28/90+80/9 28/90+16/45 28/90+16/63